CN109951133A - Control device of electric motor - Google Patents
Control device of electric motor Download PDFInfo
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- CN109951133A CN109951133A CN201811558133.5A CN201811558133A CN109951133A CN 109951133 A CN109951133 A CN 109951133A CN 201811558133 A CN201811558133 A CN 201811558133A CN 109951133 A CN109951133 A CN 109951133A
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- Prior art keywords
- cooling fin
- regeneration resistance
- fixed
- control device
- electric motor
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Abstract
The present invention can be by being set to the heat of the cooling fin release regeneration resistance of frame, and inhibits to regenerate the strength reduction of frame and the reduction of heat dissipation effect caused by resistance as installation.The second substrate (50) that control device of electric motor (1) has the frame (10) for being fixed with regeneration resistance (7) and connect with regeneration resistance (7).Frame (10) have cooling fin (30) and with the radiating surface (34) of cooling fin (30) backplate (12) that separate gap opposed.Regeneration resistance (7) is configured in the gap of backplate (12) and cooling fin (30), and is fixed on the radiating surface (34) of cooling fin (30).Cooling fin (30) is equipped with multi-disc, forms jagged (35) on being located at the first cooling fin (30A) away from the farthest position of the first heater (5) for being installed in the second substrate (50).Regeneration resistance (7) is fixed on the radiating surface (34) of the second cooling fin (30B) away from the remote position of the first heater (5) second.
Description
Technical field
The present invention relates to the control device of electric motor for having the cooling fin for cooling down heater.
Background technique
The electronic equipments such as DC-to-AC converter or servo amplifier have the heater for becoming high temperature in circulating current, because
This, has cooling heat-dissipating structure.The servo amplification for having regeneration resistance as heater is disclosed in patent document 1
Device.In patent document 1, cooling fin is formed on the frame of servo amplifier.It is recorded in Fig. 4 of patent document 1
The front end notch of multiple cooling fins is formed to the space of configuration regeneration resistance, and to connect with the front end of multiple cooling fins
Mode configures the technology of regeneration resistance.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 2012-138485 bulletin
Summary of the invention
The technical problems to be solved by the invention
In the construction as shown in Figure 4 of patent document 1, due to forming notch on a heat sink, so the table of cooling fin
Area, which subtracts, to become smaller.Therefore, heat dissipation effect reduces.In addition, there is dress when not forming notch on a heat sink and installing regeneration resistance
The problem of size-enlargement for the width direction set.
In addition, also record regeneration resistance configuration being formed in composition servo amplifier in Fig. 1 of patent document 1
The back side frame part (installed base) recess portion technology.But due to be by the construction of frame substantially notch, so
There are problems that the strength reduction of frame.
In view of the above problems, it is an object of the present invention to electricity can will be regenerated by the cooling fin being mounted on frame
The heat heat dissipation of resistance, and inhibit to regenerate the strength reduction of body frame and the reduction of heat dissipation effect caused by resistance as installation.
Technical solution used by solving the problems, such as
In order to solve the above technical problem, the present invention provides a kind of control device of electric motor, have regeneration resistance, fixation
Have the frame of regeneration resistance, regenerate the circuit substrate that connect of resistance with described, wherein the frame have cooling fin and with it is described
The radiating surface of cooling fin separates the opposed backplate in gap, and the regeneration resistance configuration is in the backplate and the radiating surface
In gap, the regeneration resistance is fixed on the surface of the radiating surface or the backplate.
In accordance with the invention it is possible to by regeneration the resistance configuration overleaf gap of plate and cooling fin.Therefore, with will regenerate electricity
Structure of the resistance configuration in the front end side of cooling fin is compared, and the large size of the size of the width direction of control device of electric motor is able to suppress
Change.In addition, configuring regeneration resistance with by multiple cooling fin notch and to make to regenerate in a manner of resistance connects with the front end of cooling fin
The case where compare, the reduction of the surface area of cooling fin is less, so being able to suppress the reduction of heat dissipation effect.Moreover, with by the back side
Plate notch and configure regeneration resistance the case where compare, be able to suppress the reduction of the intensity of frame.
In the present invention, it is generally desirable to, the regeneration resistance is fixed on the radiating surface.In this way, because can be from back
Panel side carries out that the operation that resistance is fixed on radiating surface will be regenerated, so when fixed regeneration resistance and when removing regeneration resistance
Workability it is good, and maintainability is good.For example, overleaf hole can be formed plate, and from (the motor control of the outside of backplate
The rear side of device processed) carry out regeneration resistance fixed operation.
In the present invention, it is generally desirable to, the first heater is installed in the circuit substrate, the frame has multiple institutes
The first heat dissipation being located at away from the farthest position of first heater in the case where stating cooling fin, in multiple cooling fins
On piece formed it is jagged, the regeneration resistance configuration in the notch, and be fixed on be located at away from first heater second
On the radiating surface of second cooling fin of remote position.In this way, because regeneration resistance can be fixed on away from the first heater
Remote position, so the heat heating that regeneration resistance will not be issued from the first heater.In addition, the first heater will not be by
The heat heating issued from regeneration resistance.Therefore, be able to suppress regeneration resistance fever caused by the first heater temperature rise,
The temperature of regeneration resistance caused by the fever of first heater rises.In addition, with this configuration, even if in cooling fin and the back side
In the case that the gap of plate is narrow, regeneration resistance can be also configured.In addition, because of the first cooling fin incision, it can be from back
Panel side carries out the fixed operation of regeneration resistance.Therefore, workability when fixed regeneration resistance and when dismounting regeneration resistance is good
It is good, so that maintainability is good.
In such a case, it is desirable to it is formed with wiring notch section on adjacent multiple cooling fins, it is described
Wiring constitutes the wiring gap slot extended along the orientation of the cooling fin with notch section.In such manner, it is possible to which circuit will be connected
The wiring of substrate and regeneration resistance accommodates and is around wiring gap slot.Therefore, wiring will not pass around on the outside of frame, institute
To be able to suppress the broken string of the wiring of connection circuit substrate and regeneration resistance.
In the present invention, it is generally desirable to, the frame has the frame body being connected with the backplate, the frame sheet
Body has for cooling fin cooling fin forming portion outstanding, the second heater be configured at the cooling fin forming portion with it is described
The opposite side in cooling fin side outstanding, the regeneration resistance configuration is in the regeneration resistance and the cooling fin forming portion
Spaced apart at gaps.In this way, due to that the heat of the second heater efficiently can be transmitted to cooling fin, so the second heater
Cooling efficiency is good.In addition, between due to existing between the cooling fin forming portion and regeneration resistance for the heat transmitting of the second heater
Gap and be equipped with air layer, so heat be not easy cooling fin forming portion and regeneration resistance between transmit.Therefore, it is able to suppress regeneration electricity
The temperature of second heater caused by the fever of resistance rises, the temperature of regeneration resistance caused by the fever of the second heater rises.
In the present invention, it is generally desirable to, the regeneration resistance is fixed on the radiating surface via fixation member, described solid
Determine component and has the first fixed part abutted with the regeneration resistance and the second fixed part abutted with the radiating surface.In this way,
As the path that the heat that will regenerate resistance is transmitted to cooling fin, it is added to the path transmitted by fixation member.Therefore, Neng Gouti
The cooling efficiency of height regeneration resistance.
For example, can be using such as flowering structure, the regeneration resistance is fixed on the radiating surface, in second fixed part
Be formed with fixation hole or fixed notch section, on the radiating surface, in the fixation hole or fixation notch section weight
Folded position is formed with screw hole, on the backplate, is formed with through hole in the position Chong Die with the screw hole.Separately
Outside, it is generally desirable to, the cooling fin has wall thickness, is formed with the screw hole in the wall thickness.In such manner, it is possible to from the back side
Fixing screws are screwed into the screw hole of cooling fin and fix fixation member by the outside of plate.In addition, because can ensure screw
The length in hole, so can ensure fixing intensity.
Invention effect
In accordance with the invention it is possible to by regeneration the resistance configuration overleaf gap of plate and cooling fin.Therefore, with will regenerate electricity
The structure for hindering the front end side for being configured at cooling fin is compared, and the large size of the size of the width direction of control device of electric motor is able to suppress
Change.In addition, configuring regeneration resistance with by multiple cooling fin notch and to make to regenerate in a manner of resistance connects with the front end of cooling fin
The case where compare, the reduction of the surface area of cooling fin is less, therefore, is able to suppress the reduction of heat dissipation effect.In turn, and by the back side
Plate notch and configure regeneration resistance the case where compare, be able to suppress the reduction of the intensity of frame.
Detailed description of the invention
Fig. 1 is the perspective view that control device of electric motor of the invention is applied from rear ramp side.
Fig. 2 is the exploded perspective view of the control device of electric motor of Fig. 1.
Fig. 3 is the exploded perspective view of frame and first substrate and the second substrate.
Fig. 4 is the sectional stereogram (the A-A cross-sectional view of Fig. 1) of the control device of electric motor of Fig. 1.
Fig. 5 is the side view for being fixed with the frame of regeneration resistance.
Fig. 6 is the explanatory diagram for regenerating the mounting structure that resistance is installed on frame.
Description of symbols
1 ... control device of electric motor, 5 ... first heaters, 6 ... second heaters, 7 ... regeneration resistance, 8 ... fixed parts
Part, 9 ... fixing screws, 10 ... frames, 11 ... frame bodies, 12 ... backplates, 13 ... cooling fin forming portions, 14 ... upper frames,
15 ... lower frames, 19 ... hooks, 20 ... cover members, 21 ... first cover members, 22 ... second cover members, 23 ... third cover members,
26 ... heat release holes, 30 ... cooling fins, the first cooling fin of 30A ..., the second cooling fin of 30B ..., 30C ... third cooling fin, 30D ...
Four cooling fins, the 5th cooling fin of 30E ..., the 6th cooling fin of 30F ..., 31 ... notches, 32 ... recess portions, 33 ... gaps, 34 ... heat dissipations
Face, 35 ... notches, 36 ... screw holes, 37 ... wall thickness, 38 ... wiring gap slots, 40 ... first substrates, 41 ... notches, 50 ...
The second substrate, 81 ... first fixed parts, 82 ... second fixed parts, 83 ... fixation holes, 121 ... fixation holes, 122 ... notches, 123 ...
Through hole, 141,151 ... boss portions, 211 ... right side plate portions, 212 ... upper plate portions, 213 ... base plates, 214,215 ... connecting holes,
219 ... recess portions, 221 ... left plate portions, 222 ... upper plate portions, 223 ... base plates, 224,225 ... connecting holes, 229 ... recess portions,
231 ... front panel portions, 232 ... upper plate portions, 233 ... base plates, 234 ... right side plate portions, 235 ... left plate portions, 236 ... hooks, D ...
Gap, X ... width direction, Z ... front-rear direction, Y ... up and down direction
Specific embodiment
Hereinafter, illustrating the embodiment for applying control device of electric motor of the invention referring to attached drawing.The method it is electronic
Machine control device is the servo amplifier for controlling servomotor.
Fig. 1 is the perspective view that control device of electric motor 1 of the invention is applied from rear ramp, and Fig. 2 is the electronic of Fig. 1
The exploded perspective view of machine control device 1.In the present specification, these three directions XYZ are mutually orthogonal directions.Hereinafter, at this
In specification, example when control device of electric motor 1 is arranged as up and down direction using Y-direction is illustrated, but electricity of the invention
Motivation control device 1 is not limited to use under the setting posture that Y-direction is set as up and down direction.
In the present specification, X-direction is the width direction (left and right directions) of control device of electric motor 1, and Y-direction is motor
The up and down direction of control device 1, Z-direction are the front-rear directions of control device of electric motor 1.In addition, " left side " on left and right directions and
When " right side " is the control device of electric motor 1 from front-surface side " left side " and " right side ".The side (right side) of X-direction is indicated with+X,
The other side (left side) is indicated with-X, the side (upside) of Y-direction is indicated with+Y, the other side (downside) is indicated with-Y, with+Z table
The side (front side) for showing Z-direction indicates the other side (rear side) with-Z.
As shown in Figure 1, control device of electric motor 1 is rectangular-shape as a whole.Control device of electric motor 1, which has, to be configured at
The frame 10 of the substantial middle of width direction X and the cover member 20 being fixed on frame 10.Cover member 20, which has, is configured at frame
First cover member 21 on 10 right side (+X direction), be configured at frame 10 left side (-X direction) the second cover member 22 and match
It is placed in the third cover member 23 of the front side (+Z direction) of frame 10.As shown in Fig. 2, control device of electric motor 1, which has, is configured at
The first substrate 40 of the inside of one cover member 21 and be configured at the second cover member 22 inside the second substrate 50.First substrate 40
And the second substrate 50 is fixed on frame 10.
(frame)
Fig. 3 is the exploded perspective view of frame 10 and first substrate 40 and the second substrate 50.As shown in Figure 2 and Figure 3, frame 10
Have the frame body 11 of the plate of the substantial middle for the width direction X for being configured at control device of electric motor 1 and is set to frame sheet
The backplate 12 of the rectangle of the rear end (end of -Z direction) of body 11.Frame body 11 has the heat dissipation being connected with backplate 12
Piece forming portion 13 and upper end (end of +Y direction) from cooling fin forming portion 13 and lower end (end of -Y direction) are respectively forwardly
The upper frame 14 and lower frame 15 that side (+Z direction) extends.
The cooling fin 30 that vertically Y extends is formed on frame body 11.The frame 10 of present embodiment
It is formed by the good metal of the thermal conductivity such as aluminium.Therefore, it can be improved the heat dissipation effect of cooling fin 30.In addition, since aluminium processability is good,
So cooling fin 30 easy to form.The front side (+Z direction) of the overleaf plate 12 of cooling fin 30 is along Z-direction with the pitch of constant
It is arranged with multiple.The cooling fin forming portion 13 of cooling fin 30 from frame body 11 is prominent to the right (+X direction), in motor control
Expose the side on the right side (+X direction) of device 1 processed.The rear side (- Z of the side on the right side (+X direction) of control device of electric motor 1
Direction) part be made of cooling fin 30, the part of the front side (+Z direction) of cooling fin 30 is made of the first cover member 21.
As shown in figure 3, first substrate 40 be screwed to it is outstanding to +X direction from upper frame 14 and lower frame 15 respectively
Boss portion 141,151.Equally, the second substrate 50 is screwed to prominent to -X direction from upper frame 14 and lower frame 15 respectively
Boss portion (diagram omit).Fig. 4 is that (section of the position A-A of Fig. 1 is vertical for the sectional stereogram of the control device of electric motor of Fig. 1
Body figure).As shown in figure 4, the second substrate 50 is abutted from -X direction side with cooling fin forming portion 13, and it is screwed to cooling fin
Forming portion 13.
Overleaf on plate 12, a side in the corner at two in diagonal position is formed with fixation hole 121, in another party
Two at form jagged 122.Fixation hole 121 is formed in the left side (-X direction) at upside (+Y direction) edge of backplate 12
Corner.In addition, notch 122 is formed in the corner on the right side (+X direction) at downside (-Y direction) edge of backplate 12.Pass through
Fixing screws are anchored at fixation hole 121 and two at one in notch 122, it can be at the two of diagonal position by backplate 12
It is fixed on bearing part.Thereby, it is possible to control device of electric motor 1 is fixed on bearing part via backplate 12.
(cover member)
The front surface of control device of electric motor 1 is made of third cover member 23.It is set in the front surface of control device of electric motor 1
There are connector portion (not shown), the portion of terminal of input and output.Third cover member 23 has the opening for being equipped with configuration connector portion
Portion, cover portion of terminal open-close lid front panel portion 231, connect with the edge of the +Y direction of front panel portion 231 upper plate portion 232, and
The base plate 233 of the edge connection of the -Y direction of front panel portion 231, front panel portion 231, the edge company with the +X direction of front panel portion 231
The right side plate portion 234 connect, the left plate portion 235 being connect with the edge of the -X direction of front panel portion 231.
First cover member 21 has the right side of the front part of the side on the right side (+X direction) for constituting control device of electric motor 1
Side plate 211, the upper plate portion 212 being connect with the upper edge (edge of +Y direction) in right side plate portion 211, with right side plate portion 211
The base plate of lower ora terminalis (edge of -Y direction) connection (diagram is omitted).In addition, the second cover member 22, which has, constitutes motor control
The left plate portion 221 of the side in the left side (-X direction) of device 1 processed, the upper edge (edge of +Y direction) with left plate portion 221
The upper plate portion 222 of connection, the base plate 223 being connect with the lower ora terminalis (edge of -Y direction) in left plate portion 221.
The top surface (surface of +Y direction) of control device of electric motor 1 by frame 10, the first cover member 21 upper plate portion 212 and
Upper plate portion 222, the upper plate portion 232 of third cover member 23 of second cover member 22 are constituted.Heat dissipation is formed in upper plate portion 212,222
Hole 26.Heat release hole 26 is long long hole on width direction X, is arranged on front-rear direction Z.In addition, control device of electric motor 1
Bottom surface is by frame 10, the base plate 223 of the base plate 213 of the first cover member 21 and the second cover member 22, third cover member 23
Base plate 233 is constituted.In base plate 213,223, heat release hole 26 is likewise formed with upper plate portion 212,222.Motor Control
The inner space of device 1 is connected to via the heat release hole 26 for being formed in the first cover member 21 and the second cover member 22 with outside.
As shown in Figure 1 and Figure 2, on upper frame 14, along Z-direction it is separated three at be formed with hook 19.First cover member 21
Upper plate portion 212 have the connecting hole 214 that engages of hook 19 with center.In addition, the upper plate portion 222 of the second cover member 22 have with
The connecting hole 214 that the hook 19 at other two in addition to the hook 19 in center engages.At the bottom of lower frame 15 and the first cover member 21
Same hook mechanism is also formed between plate portion (diagram is omitted) and the base plate 223 of the second cover member 22.Utilize these hook machines
First cover member 21 and the second cover member 22 are fixed on frame 10 by structure.
It is formed in third cover member 23 outstanding from right side plate portion 234 and left plate portion 235 to rear side (-Z direction)
Hook 236.Hook 236 be formed in the first cover member 21 right side plate portion 211 connecting hole 215 and be formed in the second cover member 22
Left plate portion 221 connecting hole 225 engage.Third cover member 23 is fixed to the first cover member 21 and second by the hook mechanism
Cover member 22.In addition, the fixture construction of cover member 20 is also possible to the construction other than hook mechanism.
It is formed with and has with towards rear side (-Z direction) and to downside (- Y in the upper plate portion 222 of the second cover member 22
Direction) inclined inclined surface recess portion 229.The fixation hole 121 for being formed in backplate 12 is configured at the inside of recess portion 229, therefore,
The tool of screw threads for fastening can be inserted into recess portion 229, and fixation hole will be inserted into from the front side of backplate 12 (+Z direction)
121 fixing screws are threadably secured.In addition, same, overleaf the front side (+Z direction) of the notch 122 of plate 12 is formed with recessed
Portion 32, the recess portion 32 are formed by the notch 31 for obtaining the end cut of the -Y direction of cooling fin 30 (referring to Fig. 4).It is formed
It is continuous in the recess portion 32 of cooling fin 30 and the recess portion 219 (referring to Fig. 4) for the base plate 213 for being formed in the first cover member 21.Therefore,
It can be inserted into the tool of screw threads for fastening in recess portion 219 and recess portion 32, will be inserted into from the front side (+Z direction) of backplate 12
The fixing screws screw threads for fastening of the notch 122 of backplate 12.
(heater)
First substrate 40 and the second substrate 50 are equipped with the circuit substrate of electronic component.First substrate 40 is that control is used
Substrate, based on watching via the connector portion being set in third cover member 23 from externally input control command and from being installed in
The signal for taking the encoder on motor supplies driving signal to the second substrate 50.The second substrate 50 is actuator substrate.?
The circuit pattern and electronic component for constituting servomotor control circuit, servomotor control are installed on two substrates 50
Circuit is used for driving signal of the correspondence from first substrate 40 and generates U phase, V phase, the alternating current of W phase and general from source current
It is supplied to servomotor.
Control device of electric motor 1 has the first heater 5 and the second heater 6 for the inside for being configured at cover member 20.The
One heater 5 and the second heater 6 are the electronic components for constituting servomotor control circuit.Servomotor control circuit
Have the rectification circuit that the source current supplied from AC power source is rectified, the capacitor being connected with the rectifying circuit, with electricity
The phase inverter of container connection.First heater 5 is capacitor, is installed in the second substrate 50.As shown in Fig. 2, being configured at
Lacking the end cut of 30 side of cooling fin (-Z direction) is formed on the first substrate 40 of the front side (+Z direction) of cooling fin 30
Mouth 41.First heater 5 is configured at the front side (+Z direction) of cooling fin 30, and is configured in the notch 41 of first substrate 40.
Second heater 6 is the igbt transistor for constituting phase inverter.In addition, the second heater 6 is also possible to paraphase
The IPM (intelligent power module) of circuit modular.As shown in figure 4, the cooling fin forming portion of the second substrate 50 and frame body 11
The face of 13 side (-X direction) opposite with the side outstanding of cooling fin 30 abuts, and the second heater 6 is fixed on the second substrate
50 part abutted with cooling fin forming portion 13.Second heater 6 is configured between the second substrate 50 and the second cover member 22
In gap.The heat generated from the second heater 6 is transmitted to cooling fin 30 via cooling fin forming portion 13, and from the surface of cooling fin 30
Release.In addition, the second heater 6 can also be fixed on cooling fin forming portion 13 directly or via insulating part.
In addition, control device of electric motor 1 has and is installed on the connection of the servomotor control circuit in the second substrate 50
Regeneration resistance 7.Regeneration resistance 7 is will to generate in the deceleration for the servomotor connecting with servomotor control circuit etc.
Regeneration energy be converted into the heater of heat.In this mode, regeneration resistance 7 is configured between backplate 12 and cooling fin 30
In gap, and it is fixed on cooling fin 30.
(mounting structure of regeneration resistance)
Fig. 5 is the side view for being fixed with the frame 10 of regeneration resistance 7.In addition, Fig. 6 is the peace for regenerating resistance and being installed on frame
The explanatory diagram of assembling structure.As shown in Figure 5, Figure 6, cooling fin 30 arranges multiple on front-rear direction Z, from the upper end of frame 10 (+
The end of Y-direction) arrive Y extension along the vertical direction in the range of lower end (end of -Y direction).In the side-Y of each cooling fin 30
To corner form jagged 31.The notch 31 constitutes height with the recess portion 32 that increases towards 12 side of backplate.More
In a cooling fin 30, the gap 33 as air flue is formed between adjacent cooling fin 30.In the present embodiment, more
The plate thickness of a cooling fin 30 is identical, and the width in the gap 33 between adjacent cooling fin 30 is also identical.Each cooling fin 30 has court
To the radiating surface 34 of +Z direction and -Z direction.
Hereinafter, the cooling fin 30 in multiple cooling fins 30 closest to backplate 12 is set as the first cooling fin 30A.In this reality
It applies in mode, has 6 cooling fins 30, be successively set as the second heat dissipation with from the first cooling fin 30A towards front side (+Z direction)
Piece 30B, third cooling fin 30C, the 4th cooling fin 30D, the 5th cooling fin 30E, the 6th cooling fin 30F.First cooling fin 30A is
The farthest cooling fin away from the first heater 5 being installed in the second substrate 50.In addition, the second cooling fin 30B is away from the first fever
The remote cooling fin of body 5 second.
First cooling fin 30A is configured at closest to the position of backplate 12.It is formed on the first cooling fin 30A from the side+X
To edge towards -X direction notch notch 35.Substantial middle of the notch 35 set on the Y-direction of the first cooling fin 30A.Regeneration
Resistance 7 configures in notch 35.When removing regeneration resistance 7, jagged 35 range is being formed, the first cooling fin 30A is located at
It is opposed that the radiating surface 34 and backplate 12 of the second neighbouring cooling fin 30B separates defined gap.Regeneration resistance 7 is configured at second
Between the radiating surface 34 and backplate 12 towards -Z direction of cooling fin 30B, and it is fixed on the heat dissipation of the second cooling fin 30B
Face 34.
As shown in figure 4, the notch 35 being formed on the first cooling fin 30A is by the first cooling fin 30A notch to X-direction
Half-way and formed.Therefore, the side X is formed with being configured between the regeneration resistance 7 of notch 35 and cooling fin forming portion 13
To clearance D.It is fixed via the second substrate 50 in the side opposite with the side for being formed with cooling fin 30 that cooling fin forms 13
There is the second heater 6.That is, regeneration resistance 7 is configured to, at it, (cooling fin is formed with the part that is fixed with the second heater 6
Portion 13) between form air layer.
Regeneration resistance 7 is fixed on the radiating surface 34 of the second cooling fin 30B via fixation member 8.Fixation member 8 is regenerating
The both ends of the Y-direction of resistance 7 respectively configure one.Each fixation member 8 is that have the first fixed part 81 of plate and relative to first
The bending part of second fixed part 82 of the plate that fixed part 81 is connected with approximate right angle.First fixed part 81 and regeneration resistance 7
Side abut, and be fixed on regeneration resistance 7.Second fixed part 82 is abutted with radiating surface 34, passes through 9 screw threads for fastening of fixing screws
In on the second cooling fin 30B.As shown in fig. 6, it is formed with fixation hole 83 in the second fixed part 82, on the second cooling fin 30B, in
The position Chong Die with fixation hole 83 is formed with screw hole 36 (referring to Fig. 5).The formation of second cooling fin 30B has the portion of screw hole 36
It is divided into the plate thickness wall thickness 37 bigger than the plate thickness of other parts.Overleaf on plate 12, in the screw hole with the second cooling fin 30B
The position of 36 overlappings is formed with through hole 123.Through hole 123 is for being inserted into the tool being threadably secured to fixing screws 9
Hole.
Other 5 on pieces in multiple cooling fins 30, in addition to the first cooling fin 30A, respectively than regeneration resistance 7
Installation site is formed with wiring notch section on the lower (-Y direction).The wiring notch section being formed on 5 cooling fins 30 exists
It is arranged on the orientation of cooling fin 30, that is, front-rear direction Z, constitutes the wiring gap slot 38 that Z extends along the longitudinal direction.With again
The wiring (not shown) that raw resistance 7 connects is configured in wiring in gap slot 38.
(main effect of present embodiment)
As described above, the frame that the control device of electric motor 1 of present embodiment has regeneration resistance 7, is fixed with regeneration resistance 7
Frame 10 and the second substrate 50 being connect with regeneration resistance 7.Frame 10 have cooling fin 30 and with the radiating surface 34 of cooling fin 30 every
The opposed backplate 12 of standard width of a room in an old-style house gap.Regeneration resistance 7 is configured in the gap of backplate 12 and cooling fin 30, and is fixed on heat dissipation
On the radiating surface 34 of piece 30.In this way, configured by the way that resistance 7 will be regenerated in the gap of overleaf plate 12 and cooling fin 30, thus with
The regeneration configuration of resistance 7 is compared in the case where front end side of cooling fin 30, is able to suppress the width direction of control device of electric motor 1
The enlargement of the size of (X-direction).In addition, with by multiple 30 notch of cooling fin and side to connect with the front end of cooling fin 30
The case where formula configuration regeneration resistance 7, is compared, and the reduction of the surface area of cooling fin 30 is less, so being able to suppress the drop of heat dissipation effect
It is low.In addition, with by backplate notch come configure regeneration resistance the case where compared with, be able to suppress the reduction of the intensity of frame 10.Separately
Outside, the side of control device of electric motor 1 is arranged in because of regeneration resistance 7 is not configured at the inside of cover member 20 and make
It exposes to outside, so can reinforce heat dissipation effect, so as to inhibit the temperature inside control device of electric motor 1 to rise.
In the present embodiment, regeneration resistance 7 is fixed on radiating surface 34, makes to regenerate resistance 7 and 34 face contact of radiating surface.
Therefore, heat dissipation effect can be reinforced.In addition, be fixed on cooling fin 30 by the way that resistance 7 will be regenerated, so as to from backplate 12
Side carries out the assembly and disassembly operation of regeneration resistance 7.That is, through hole 123 can be formed overleaf on plate 12, with from the outer of backplate 12
Side carries out the assembly and disassembly operation of regeneration resistance 7.Thereby, it is possible to improve workability when assembly and disassembly regeneration resistance 7, maintainability can be made good
It is good.In addition, because of assembly and disassembly operation without carrying out regeneration resistance 7 from 40 side of first substrate insertion tool, without matching
The through hole being arranged for being inserted into tool is placed on the cooling fin 30 of the front side (+Z direction) of regeneration resistance 7.Therefore, it is able to suppress
The reduction of the surface area of cooling fin 30, so the reduction of heat dissipation effect can be reduced.
In the present embodiment, the first heater 5 is installed in the second substrate 50, and frame 10 has multiple cooling fins 30,
So notch 35 is formed on being located at the first cooling fin 30A away from the farthest position of the first heater 5, regeneration resistance 7 is fixed
On the radiating surface 34 positioned at the second cooling fin 30B away from the remote position of the first heater 5 second.In this way, because can will again
Raw resistance 7 is fixed on away from 5 remote position of the first heater, so the heat that regeneration resistance 7 will not be issued from the first heater 5
Heating.In addition, the first heater 5 will not be heated by the heat issued from regeneration resistance 7.Therefore, it is able to suppress regeneration resistance 7
The temperature of first heater 5 caused by generating heat rises, the temperature of regeneration resistance 7 caused by the fever of the first heater 5 rises.Separately
Outside, by forming jagged 35 on the first cooling fin 30A as described above, even if overleaf the gap of plate 12 and cooling fin 30 is narrow
In the case where, it can also configure regeneration resistance 7.In addition, because of the first cooling fin 30A incision, it can be from backplate 12
Side carries out the fixed operation of regeneration resistance 7.In addition, 35 incision of notch of the first cooling fin 30A to X-direction midway position
It sets, not by the entire scope notch of X-direction.Therefore, the reduction amount of the heat dissipation area on the first cooling fin 30A is less, so
It is able to suppress the reduction of heat dissipation effect.In addition, can also ensure that the first cooling fin 30A in the case where regeneration resistance 7 are not configured
Area.
The frame body 11 of present embodiment has a cooling fin forming portion 13 connecting with backplate 12, and cooling fin 30 is from dissipating
Backing forming portion 13 is prominent to +X direction.Second heater 6 be configured at cooling fin forming portion 13 with cooling fin 30 outstanding one
The opposite side in side (-X direction).Therefore, because the heat of the second heater 6 is transmitted to cooling fin 30 from cooling fin forming portion 13,
So the heat of the second heater 6 can be made to be released.In addition, regeneration resistance 7 is configured in the regeneration resistance 7 and cooling fin shape
Clearance D is spaced apart at portion 13.Therefore, because between regeneration resistance and the second heater 6, there are air layers, so can press down
The temperature of second heater 6 caused by the fever of preparation, regeneration resistance 7 rises, regenerates resistance 7 caused by the fever of the second heater 6
Temperature rise.
The regeneration resistance 7 of present embodiment is fixed on the radiating surface 34 of the second cooling fin 30B via fixation member 8.It is fixed
Component 8 has the first fixed part 81 abutted with regeneration resistance 7 and the second fixed part 82 abutted with radiating surface.Therefore, as
The path that the heat for regenerating resistance 7 is transmitted to the second cooling fin 30B, is added to the transmission path via fixation member 8, so energy
Enough cooling efficiencies for improving regeneration resistance 7.In addition, the shape of fixation member 8 is not limited to shape as the present embodiment.Example
Such as, the whole fixation member of covering regeneration resistance 7 also can be used to be fixed.Alternatively, it is also possible to without using fixation member 8
Setting fixation hole is fixed on regeneration resistance 7.Radiating surface is fixed on by resistance 7 is regenerated alternatively, bonding agent also can be used
On 34.
In the present embodiment, it is formed with fixation hole 83 in the second fixed part 82 of fixation member 8, in the second cooling fin
On 30B, it is equipped with wall thickness 37 in the position Chong Die with fixation hole 83, is formed with screw hole 36 in wall thickness 37.Moreover, overleaf
On plate 12, through hole 123 is formed in the position Chong Die with screw hole 36.Therefore, spiral shell will can be fixed from the outside of backplate
Nail 9 is screwed into the screw hole 36 of the second cooling fin 30B, and fixation member 8 is fixed on the second cooling fin 30B.At this point, because spiral shell
Nail hole 36 is formed in wall thickness 37, so can ensure the length of screw hole 36, so as to ensure fixing intensity.This fixation
It is configured to carry out the assembly and disassembly operation of regeneration resistance 7 from the outside of control device of electric motor 1, so assembly and disassembly regeneration electricity can be improved
Workability when hindering 7.Therefore, maintainability is good.Additionally it is possible to not form fixation hole 83 in the second fixed part 82 and formed solid
Surely notch section is used, and fixing screws 9 are passed through into fixed notch section to be fixed.
In the present embodiment, in multi-disc cooling fin 30, other 5 on pieces in addition to the first cooling fin 30A are formed
There is wiring notch section, and is equipped with the wiring gap slot 38 that the orientation along cooling fin 30, that is, front-rear direction Z extends.Cause
This, the wiring for connecting the second substrate 50 and regeneration resistance 7 can be accommodated and be around wiring gap slot 38.Accordingly, because
Wiring does not pass around in the outside of frame 10, so being able to suppress connection the second substrate 50 and regenerating the broken string of the wiring of resistance 7.
(other embodiment)
(1) in the above-described embodiment, the second cooling fin is fixed on by the first cooling fin 30A notch and by regeneration resistance 7
On 30B, but the position for installing regeneration resistance 7 is also possible to other cooling fins 30.For example, in the first cooling fin 30A and backplate
In the case that 12 gap is the width that can configure regeneration resistance 7, regeneration resistance 7 can be fixed on the first cooling fin 30A
Radiating surface 34 on without on the first cooling fin 30A formed notch 35.In this case, because regeneration resistance 7 is fixed
On the radiating surface 34 positioned at the first cooling fin 30A away from the farthest position of the first heater 5, so can be by the first heater
5 and regeneration 7 separate configuration of resistance.Therefore, the temperature for being able to suppress the first heater 5 caused by the fever of regeneration resistance 7 rises.
In addition, being able to suppress again because the heat of the first heater 5 is not easy to be transmitted on the cooling fin 30 for being fixed with regeneration resistance 7
The temperature of raw resistance 7 rises.
(2) in the case where the gap of the first cooling fin 30A and backplate 12, which is, can configure the width of regeneration resistance 7,
Regeneration resistance 7 can be fixed on 12 side of backplate rather than radiating surface 34.In this case, fixed by will be formed in second
The fixation hole 83 in portion 82 is used as screw hole, and the fixation hole Chong Die with screw hole is overleaf formed on plate 12, so as to from the back side
Fixing screws 9 are screwed to fixation member 8 by the rear side (-Z direction) of plate 12.Backplate 12 is fixed on resistance 7 will be regenerated
Inside in the case where, can further therefore separate configuration be able to suppress regeneration electricity by the first heater 5 and regeneration resistance 7
The temperature of first heater 5 caused by the fever of resistance 7 rises.
It (3), can will again in the case where the gap 33 of adjacent cooling fin 30, which is, can configure the width of regeneration resistance 7
The raw configuration of resistance 7 is fixed on the cooling fin 30 towards gap 33 in gap 33 and by regeneration resistance 7.In this case,
Through hole can be formed on the cooling fin 30 being located between regeneration resistance 7 and backplate 12, insert a tool into backplate 12
Through hole 123 and cooling fin 30 through hole in, fixation member 8 is screwed to cooling fin 30.
Claims (12)
1. a kind of control device of electric motor, have regeneration resistance, be fixed with regeneration resistance frame and with the regeneration resistance
The circuit substrate of connection, which is characterized in that
The frame have cooling fin and with the radiating surface of the cooling fin backplate that separate gap opposed,
The regeneration resistance configuration in the gap of the backplate and the radiating surface,
The regeneration resistance is fixed on the surface of the radiating surface or the backplate.
2. control device of electric motor according to claim 1, which is characterized in that
The regeneration resistance is fixed on the radiating surface.
3. control device of electric motor according to claim 2, which is characterized in that
First heater is installed in the circuit substrate,
The frame has multiple cooling fins, and being located in multiple cooling fins is farthest away from first heater
Formed on first cooling fin of position it is jagged,
The regeneration resistance configuration is fixed on the be located at away from the remote position of first heater second in the notch
On the radiating surface of two cooling fins.
4. control device of electric motor according to claim 3, which is characterized in that
It is formed with wiring notch section on adjacent multiple cooling fins,
The wiring constitutes the wiring gap slot extended along the orientation of the cooling fin with notch section.
5. control device of electric motor according to claim 1, which is characterized in that
The frame has the frame body being connected with the backplate,
The frame body has for cooling fin cooling fin forming portion outstanding,
Second heater is configured at the side opposite with cooling fin side outstanding of the cooling fin forming portion,
The regeneration resistance configuration is at the spaced apart at gaps in the regeneration resistance and the cooling fin forming portion.
6. control device of electric motor according to any one of claims 1 to 5, which is characterized in that
The regeneration resistance is fixed on the radiating surface via fixation member,
The fixation member has the first fixed part abutted with the regeneration resistance and second abutted with the radiating surface is solid
Determine portion.
7. control device of electric motor according to claim 6, which is characterized in that
The regeneration resistance is fixed on the radiating surface,
Be formed with fixation hole or fixed notch section in second fixed part, on the radiating surface, in the fixation hole
Or the fixation is formed with screw hole with the position that notch section is overlapped,
On the backplate, through hole is formed in the position Chong Die with the screw hole.
8. control device of electric motor according to claim 7, which is characterized in that
The cooling fin has wall thickness, is formed with the screw hole in the wall thickness.
9. control device of electric motor according to claim 4, which is characterized in that
The frame has the frame body being connected with the backplate,
The frame body has for cooling fin cooling fin forming portion outstanding,
Second heater is configured at the side opposite with cooling fin side outstanding of the cooling fin forming portion,
The regeneration resistance configuration is at the spaced apart at gaps in the regeneration resistance and the cooling fin forming portion.
10. control device of electric motor according to claim 9, which is characterized in that
The regeneration resistance is fixed on the radiating surface via fixation member,
The fixation member has the first fixed part abutted with the regeneration resistance and second abutted with the radiating surface is solid
Determine portion.
11. control device of electric motor according to claim 10, which is characterized in that
The regeneration resistance is fixed on the radiating surface,
Be formed with fixation hole or fixed notch section in second fixed part, on the radiating surface, in the fixation hole
Or the fixation is formed with screw hole with the position that notch section is overlapped,
On the backplate, through hole is formed in the position Chong Die with the screw hole.
12. control device of electric motor according to claim 11, which is characterized in that
The cooling fin has wall thickness, is formed with the screw hole in the wall thickness.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-242445 | 2017-12-19 | ||
| JP2017242445A JP7106269B2 (en) | 2017-12-19 | 2017-12-19 | motor controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109951133A true CN109951133A (en) | 2019-06-28 |
| CN109951133B CN109951133B (en) | 2023-01-10 |
Family
ID=67006425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558133.5A Active CN109951133B (en) | 2017-12-19 | 2018-12-19 | Motor control device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7106269B2 (en) |
| CN (1) | CN109951133B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11307302A (en) * | 1998-04-21 | 1999-11-05 | Fanuc Ltd | Non-thermal conducting resistor for servo amplifier and the servo amplifier equipped with the resistor |
| CN102467207A (en) * | 2010-11-19 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Computer system and radiator thereof |
| JP2012138485A (en) * | 2010-12-27 | 2012-07-19 | Fuji Electric Co Ltd | Servo amplifier |
| JP2014116529A (en) * | 2012-12-12 | 2014-06-26 | Fuji Electric Co Ltd | Servo amplifier |
| CN205793916U (en) * | 2016-06-02 | 2016-12-07 | 上海申彦通讯设备制造有限公司 | A kind of radiator of band wiring groove |
| CN109195419A (en) * | 2018-10-29 | 2019-01-11 | 珠海格力电器股份有限公司 | Air conditioner electrical box and its radiator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324262U (en) * | 1976-08-09 | 1978-03-01 | ||
| JPH10117077A (en) * | 1996-10-11 | 1998-05-06 | Fujikura Ltd | Heat sink |
-
2017
- 2017-12-19 JP JP2017242445A patent/JP7106269B2/en active Active
-
2018
- 2018-12-19 CN CN201811558133.5A patent/CN109951133B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11307302A (en) * | 1998-04-21 | 1999-11-05 | Fanuc Ltd | Non-thermal conducting resistor for servo amplifier and the servo amplifier equipped with the resistor |
| CN102467207A (en) * | 2010-11-19 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Computer system and radiator thereof |
| JP2012138485A (en) * | 2010-12-27 | 2012-07-19 | Fuji Electric Co Ltd | Servo amplifier |
| JP2014116529A (en) * | 2012-12-12 | 2014-06-26 | Fuji Electric Co Ltd | Servo amplifier |
| CN205793916U (en) * | 2016-06-02 | 2016-12-07 | 上海申彦通讯设备制造有限公司 | A kind of radiator of band wiring groove |
| CN109195419A (en) * | 2018-10-29 | 2019-01-11 | 珠海格力电器股份有限公司 | Air conditioner electrical box and its radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7106269B2 (en) | 2022-07-26 |
| CN109951133B (en) | 2023-01-10 |
| JP2019110681A (en) | 2019-07-04 |
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